Add purpose editing

Web/Views/Purpose/Edit.cshtml

@@ -0,0 +1,28 @@
+@model MileageTraker.Web.Models.PurposeType
+
+@{
+    ViewBag.Title = "Purpose Edit";
+}
+
+@Html.Partial("_StatusMessage")
+
+<h2 class="center-content">@ViewBag.Title</h2>
+
+@using (Html.BeginForm("Edit", "Purpose", FormMethod.Post, new { @class = "form-horizontal well center-content" }))
+{
+    @Html.Partial("_ValidationSummary")
+
+    <fieldset>
+        <legend></legend>
+
+        @Html.EditorForModel()
+
+        <div class="form-actions">
+            <input type="submit" value="Save" class="btn btn-primary" />
+        </div>
+    </fieldset>
+}
+
+<div class="btn-toolbar center-content">
+    @Html.ActionLink("Details", "Details", new { id = Model.PurposeTypeId }, new { @class = "btn" })
+</div>